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Exam (elaborations)
NUR 265 Exam 2 Study Guide
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---23May 20212020/2021A
- Pulmonary Emboli (P 603) 
● Occlusion of portion of pulmonary artery by a blood clot – from venous circulation – lower extremities or heart. 
● Causes ventilation-perfusion mismatch (V/Q) – Ventilated alveoli no longer perfused due to clotted artery. 
● Risk Factors 
o Venous stasis (w/prolonged immobility); Central venous catheters; Surgery (NPO, dehydrated, immobilized 
pts); Obesity; Advanced age; Hypercoagulability (Platelets >400K and not enough fluids; sticky blood); Hx of 
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Aleko